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Campfire 'Bwana
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OK. Geez they should go in there. You might be right you need the FT dies. Play with it a little more. The brass you've been using was that made with Dober's FT dies? My wife does not hunt so I'm good from that angle.
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Campfire Tracker
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Yep Dober loaned me his dies until mine came in and reamer when I first build it. Going to order my own reamer soon as I don't know if I will ever be without a mashburn
Last edited by laker; 02/29/16.
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Campfire 'Bwana
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It grows on you.... Wish I'd built mine years ago. Not much need for anything else in open country.
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Joined: Feb 2001
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Campfire Outfitter
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Campfire Outfitter
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Tried to run a new piece of brass through my FL dies and it didn't quite form it enough to get it to chamber. Guess Im going to have to invest in a forming die since the 100 pieces I formed with Dobers dies have just over 700 rounds on them so they are almost on their last leg. laker, One way to over come this without the buying a die is to take a shell holder and have your smith take .005 off the top. This will allow you to "goose" the case up into the die just enough to get the case to "fit".After the case have been fired once.you can get back to a normal shell holder.. Much cheeper than a new die. Im thinking Redding has adjusted shell holders.... dave
Only accurate rifles are interesting.
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That's how I feel too. I've built and bought a few other guns but they always seem to stay in the safe and the mashburn goes out so most of those have went down the road. Figured I'd build her one to simplify my reloading bench too
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Thanks Dave. I'm going to play with it some more tonight but I may have to try that
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Campfire Ranger
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Campfire Ranger
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I use the RCBS FL resizer that I use to size Hornady 300 Win brass. I have my FL die set up to bump the shoulder .002" on the fired MSM. It makes slightly tight chambering on the reformed Hornady 300 Win brass but they pop easily out of the chamber.
I am with you guys though. I really enjoy the Mashburn though. Having a reamer is a great idea.
Bob helped me out with mine and I couldn't be happier. Been easy to load for and it works real well for me in the hunting fields.
Semper Fi
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Campfire Regular
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Yep Dober loaned me his dies until mine came in and reamer when I first build it. Going to order my own reamer soon as I don't know if I will ever be without a mashburn Laker, Who are you going with on the reamer? I'm going to order one pretty soon. Curious how a "standard" throat, if there is such a thing, works with the 175/180 grain class of bullets for seating length. I can see myself using these more than the 195's. Or is everyone speccing the freebore by sending a loaded case? Reading everything I can find on it but it don't hurt to revisit the subject if it's been discussed elsewhere.
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Campfire Outfitter
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If your going to have a reamer made. I would pick the bullet you want to use. Or bullets you want to use, and come up with a mag length that will fit. Send dummy rounds to reamer maker. Its the only way to "know"
dave
Only accurate rifles are interesting.
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Campfire 'Bwana
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The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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On last barrel I had chambered with my reamer, the smith cut the throat sepretaley at about COL 3.5 to allow for errosion and used a 1.5 deg. angle rather the more common 3 deg. for the funnel into the leade.
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Yep Dober loaned me his dies until mine came in and reamer when I first build it. Going to order my own reamer soon as I don't know if I will ever be without a mashburn Laker, Who are you going with on the reamer PTG
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Campfire 'Bwana
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Doc i think I know the answer but rather than look stupid, i will ask.... What does that 1.5 degree funnel into the lead do vs the 3 degree?
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Well I tried again with my FL die to form brass. I guess my first try I didn't put out enough. Had to really get after it but I got it to work. Puts a little donut on the shoulder but it chambers so it will iron out when I fireform. Now I might just pick up a stock 7mm Remington mag and ream the barrel out for the wife's mashburn
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Campfire 'Bwana
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OK...with my FL die if I back off just a wee bit from there, the case will chamber and no bulge. But I know these dies can vary just a bit. Anyway it's one reason I like to use COW to FF....gets rid of those little case annoyances, straights everything out and accuracy is very good. If I live fire to FF, my accuracy is not quite as good. Budt that may vary rifle to rifle. Grab her a Rem 700....easy conversion but you know that.
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Campfire Outfitter
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On last barrel I had chambered with my reamer, the smith cut the throat sepretaley at about COL 3.5 to allow for errosion and used a 1.5 deg. angle rather the more common 3 deg. for the funnel into the leade. Thats one way to do it. I always have the smith use the 1 inch that they typically cut off the end of a barrel to make a barrel stub. And I always like to have my neck and free bore on the reamer itself. The stub can be used as a case gage to check how much your sizing the cases with your full length die. And the freebore on the reamer will alow you to come up with a seating depth,usuing the stub, without ever sticking a shell in the gun. dave
Only accurate rifles are interesting.
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My smith said that it is bench rest practice and makes the bullet inter the leade straighter. Overall it enhances accuracy.
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Campfire 'Bwana
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The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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I guess I should go back and read through this thread...
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Campfire 'Bwana
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I guess I should go back and read through this thread... Joel, get a copy of Hagel's article from Scotty. Much easier to read and understand.
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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